YmirGF
Bodhisattva in Recovery
Indeed there could be many reasons for the Muslim conquests, however the reality is that most were done simply to extend the faith. In the weirdest perversity we have witnessed, Muslim conquerors went on their bloody rampages, time and time again because they felt compelled by their teachings and had a god given right to do so. God was on their side and consequently they could do no wrong. In effect, the ends justified the means. As long as Islam grew stronger, any lesser crimes (sins) would, in theory, be forgiven.May be so, and that could be for many reasons, not necessarily because Islam is a religion of conquest while Buddhism is not. (I'm not saying that Buddhism is so).
Muslims also smile and say but many people converted of their own free will, but quite frankly considering the alternatives one can only conclude that many of these conversions were solely made to save their skin and assets. It was a pragmatic choice rather than endure life as a dhimmi or second class citizen.
For example, Muslims love to wax on about the incredible heights of civilization in Andalusia however the pretext for that Muslim invasion was paper thin. The reasons struck all the right notes in the doublespeak of the Muslim psyche. One could scarcely expect a more instantaneous call to action by entering a rowdy beer hall at 3 am telling the assembled patrons that a group of uncouth types was outside and rudely claiming that their mothers wore army boots and dressed the patrons funny. The "request" to help regain the lower Spanish peninsula could also be likened to waving a rather large red flag in front of an angry bull. Perhaps that is how the custom started.
As for your contention that Islam no longer conquers by the sword, for the most part, that is technically true, however it is also true that all too many Muslim still use fear and any weapons they can get their little hands on to "strike fear into the hearts" of those who have the temerity to oppose them. PEW research indicates that approximately 10% of all Muslims polled stated they were in favor of violent conflict. The reality is that if indeed there are 1.3 billion Muslims on Earth, that translates into at least 130,000,000 people. Hardly comforting numbers. A further 20% said they were somewhat sympathetic to the cause of the radicals. Now we are talking very large numbers. How is it that so very many Muslims misunderstand their "religion of peace"? The point is, they don't, they just take submission very seriously.